4154448639 has 16 divisors (see below), whose sum is σ = 6050916864. Its totient is φ = 2514480000.

The previous prime is 4154448637. The next prime is 4154448671. The reversal of 4154448639 is 9368444514.

It is a happy number.

It is not a de Polignac number, because 4154448639 - 2¹ = 4154448637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4154448637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59034 + ... + 108599.

It is an arithmetic number, because the mean of its divisors is an integer number (378182304).

Almost surely, 2^4154448639 is an apocalyptic number.

4154448639 is a deficient number, since it is larger than the sum of its proper divisors (1896468225).

4154448639 is a wasteful number, since it uses less digits than its factorization.

4154448639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168398.

The product of its digits is 1658880, while the sum is 48.

The square root of 4154448639 is about 64455.0125203618. The cubic root of 4154448639 is about 1607.5745843281.

The spelling of 4154448639 in words is "four billion, one hundred fifty-four million, four hundred forty-eight thousand, six hundred thirty-nine".